[clang] [llvm] [RISCV] Assembler support for XRivosVizip (PR #127694)

[Craig Topper via cfe-commits]

================
@@ -0,0 +1,27 @@
+//===-- RISCVInstrInfoXRivos.td --------------------------*- tablegen -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file describes the vendor extensions defined by Rivos Inc.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// XRivosVizip
+//===----------------------------------------------------------------------===//
+
+
+let Predicates = [HasVendorXRivosVizip], hasSideEffects = 0,
+  mayLoad = 0, mayStore = 0, isCodeGenOnly = 0, DecoderNamespace = "XRivos",
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topperc wrote:

I think `hasSideEffects = 0, mayLoad = 0, mayStore = 0` are already part of `VALU_IV_V`?

`isCodeGenOnly = 0` should be the default unless you use the `Pseudo` class in your hierarchy.

https://github.com/llvm/llvm-project/pull/127694